Grey Kribensis?

betta fish

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Anyone else's male Kribensis do this? he turns a solid grey/blue colour every now and then and then resumes normal colouration, although he has been doing this a lot more lately, he has a female with him( she's on the right ) and they regularly spawn so not sure if it some type of breeding colouration to perhaps subdue the female? I have read that the females are the more aggressive but it is usually him being the aggressor.
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Arcticfox1977

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I only got my krib yesterday. He has just started to come out of hiding. He is still grey looking. He has a slight blue colour on his lower fins but no other colour. Can't wait for his. Colour to come out. I have already have the ideal plants for him.
 
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